来自中国云南的两种木霉新物种。

Two new species of Trichoderma from Yunnan, China.

作者信息

Yu Ze-Fen, Qiao Min, Zhang Ying, Zhang Ke-Qin

机构信息

Laboratory for Conservation and Utilization of Bio-resource, Yunnan University, Kunming, Yunnan, 650091, PR China.

出版信息

Antonie Van Leeuwenhoek. 2007 Jul;92(1):101-8. doi: 10.1007/s10482-006-9140-4. Epub 2007 Jan 18.

DOI:10.1007/s10482-006-9140-4

PMID:17235482

Abstract

Two new species of the fungal genus Trichoderma, Trichoderma compactum and Trichoderma yunnanense, isolated from rhizosphere of tobacco in Yunnan Province, China are described based on morphological characters and phylogenetic analyses of nucleotide sequences. Our DNA sequences included the internal transcribed spacer (ITS) regions of the rDNA cluster (ITS1 and ITS2), and partial sequences of the translation elongation factor 1-alpha (tef1) and a fragment of the gene coding for endochitinase 42 (ech42). The analyses show that T. compactum belongs to the Harzianum clade, and T. yunnanense belongs to the Hamatum clade.

摘要

基于形态特征和核苷酸序列的系统发育分析，描述了从中国云南省烟草根际分离出的木霉属（Trichoderma）的两个新物种，即紧密木霉（Trichoderma compactum）和云南木霉（Trichoderma yunnanense）。我们的DNA序列包括核糖体DNA簇的内部转录间隔区（ITS）（ITS1和ITS2）、翻译延伸因子1-α（tef1）的部分序列以及编码内切几丁质酶42（ech42）的基因片段。分析表明，紧密木霉属于哈茨木霉分支，云南木霉属于钩状木霉分支。